Pneumatic apparatus for dentists or physicians.



PATENTED JUNE 9, 1903.

P. H. STEHLEY & J. H. HULINGS.

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UNITED STATE Patented .I'une Q, 1903.

PATENT OFFICE.

PAUL I-IALDEMAN STEH LEY AND JAMES HENRY HULINGS, OF PARSONS, WEST VIRGINIA, ASSIGNORS OF ONE-THIRD TO FRAZER P. ,STEHLEY,

OF KEYSER, WEST VIRGINIA.

PNEUMATIC APPARATUS FOR DENTISTS ORPHYSICIANS.

SPECIFIGA 'IION formingpart of Letters Patent No. 730,7Il4, dated June 9, 1903.

Application filed October 2, 1902.

To all whom it may concern;

Be it known that We, PAUL I-IALDEMAN STEHLEY and JAMES. HENRY HULINGS, citi zens of the United States, residing at Parsons, in the county of Tucker and State of West Virginia, have made certain new and useful 1 Improvements in Pneumatic Apparatus for Dentists and Physicians, of which the following is a specification.

Our invention is designed to provide for the use of dentists, physicians, and others a com pact and easily-portable apparatus for supplying under pneumatic pressure a stream of air, water, (either hot or cold,) medicaments, antiseptics, &c., in a simple, convenient, and practical manner. Its chief uses will be for dentists for blowing chips from the drilling of teeth, the drying of root-cavities, and for cleansing root-cavities and other portions of the mouth or gum, while for physicians it will be used for irrigating and cleansing wounds or the natural cavities of the body and for administering enema. It is also applicablefor use by embalmers, chemists, and others;

It consists in a novel construction and ar-. rangement of pneumatic reservoir for air in combination witha bottle or receptacle for medicaments and various pipe connections, tubes, and nozzles, whereby the apparatus isv made available for the various uses named in a simple and convenient way, as will be hereinafter described with reference to the drawings, in which- Figure 1 is a perspective view of the exterior of the apparatus, and Fig. 2 a vertical section of the pneumatic chamber and its accessory parts.

In the drawings, A represents the pneumatic reservoir, which is made of copper or brass and of about the proportions of an ordinary tea-kettle. It is round in outline, and in the ceiiter of its upper part it is formed with a depression A, extending nearly to'the bottom, and entirely open at its upper end and adapted to receive and form a retaining seat or nest for any one of a series of interchangeable bottles or receptacles B for containing water or other liquids.

In the side of the kettle A is fixed in in- Serial No- 125.652. (No model.)

clined position an air-pump C, by which air may be forced into the tank under considerable compression. This pump may enter either at. the side or through the top, as may be desired. A screw-cap A in the top of the kettle permits water or other liquid to be inserted into the kettle and the interior to be cleaned, it' necessary.

The kettle is supported upon a detachable base B", having a flanged ring to retain the bottom of the kettle, and legs, with screwholes through the feet, by which it may be fixedly secured to a table or other support. A spirit-lamp L, a gas-"burner, or other port- 'able heater is designedto be placed beneath the kettle to heat its contents.

The kettle A is perfectly tight when cap A is screwed down, and itis designed to receive and holdunder pressure both a body of Water and a supernatant cushion of air for various uses and which maybe made available either hot or cold, according as the heater is used or not.

From a nipple on the top of the kettle a flexible pipe b is connected seated in the depression A. This pipe connects with one of the connections b of a capstopper B and admits through a valve 1) the air-pressure of reservoir A to the interior of the bottle. Another pipe connection b of this stopper connects inside the bottle with a pipe 1), extending to the bottom, and at a point outside the bottle communicates through valve 1; with a flexible pipe B extending any suitable distance and provided with a terminal nozzle B When the air-pressure from the reservoir-kettle is admitted through pipe 19 onto the top of the water medicament or other liquid in the bottle, said liquid is forced up pipe I) and out through the pipe B and nozzle B and is directed by the hand of the operator to the hollow tooth or any other part of the body. As the bottleB fits closely in the central nest or depression A in the kettle, it will-be seenthat the contents of the bottle are subjected to a warm-water bath and may be maintained at any desired temperature and at the same time may be retained in glass in an immaculately clean condition.

to a bottle B, 4

\Vith the upper part of the kettle A there connects by a suitable thimble another flexible pipe E, provided with a terminal nozzle E, having a suitable valve to control the dis charge, and through this pipe and nozzle a jet of air, either hot or cold, may be directed to any point-such, for instance, as is required to blow out drill-chips from a tooth or to dry out cavities.

D is an upright pipe fixedin the top of the kettle and depending to a point near the bottom of the same. This pipe through a stopcock d on the outside of the kettle connects with a flexible pipe D, havinga nozzle D of suitable shape for enema purposes, for irrigating Wounds, or for washing out any cavity of the body. When the stop-cock dis opened, it will be seen that the pressure of air on the top of the water in the kettle forces the Water out in a stream through the pipes D and D with any desired energy, dependent upon the pressure ofthe air-cushion stored up by the pump 0 in the kettle above the surface of the water.

P is a pop-valve, which may be set to blow ofif at any desired pressure. This may or may not -be used; but when a heating appliance is used the expansion of an already stored-up cushion of air renders such relief-valve a desirable adjunct.

We are aware that apparatus for dental uses have been heretofore devised for supplying under pressure air and water, and We therefore only claim our novel construction and arrangement of parts, which provide a moresimple, compact, and convenient apparatus.

Although the pump 0 is described for pumping air into the reservoir A, it is obvious that it may also be used for pumping any form of gas and storing this under pressure for medical purposes. 7

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

A pneumatic dental apparatus for supplying either a liquid or a gas under pressure, consisting of a reservoir-kettle having a pendent depression extending from the top to near the bottom and open at the upper end, a detachable receptacle seated in said depression and having a stopper provided with a pendent tube extending to near the bottom and an external stop-cock, pipe, and nozzle communicating with said pendent tube, asecond pipe connecting said detachable receptacle with the top of the kettle, an air-compressing device fixed to the kettle and discharging into the same, and two separate pipes, connecting with the kettle, one entering the top of the kettle to carry off air or gas, and the other extending to near the bottom of the,

kettle to carry off water under the pressure of the supernatant air or gas substantially as and for the' purpose described.

PAUL HALDEMAN STEHLEY. JAMES HENRY HULINGS. Witnesses:

ANNA WILKINSON, WAYNE K. PRITT. 

